My mouse wheel doesn't work on the left of my computer screen: I can't go up nor down using my mouse wheel when my cursor is hovering a strip which width is about from 5% to 30% from the left of my computer screen. From 0% to 5% and from 30% to 100%, it works though. Moreover, only the scrolling functionality of the mouse wheel does not work, i.e. the wheel-click works.
Any idea what could be the reason of that strange behavior?
I'm working on Windows 7 x64 bits. I already tried many mouses, but the problem still exists (i.e. it's not a problem with the mouse I'm using).